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- Path: sparky!uunet!munnari.oz.au!yoyo.aarnet.edu.au!dstos3.dsto.gov.au!bennett
- From: bennett@dstos3.dsto.gov.au
- Newsgroups: comp.sys.dec
- Subject: Re: WANTED old PDP-11?
- Message-ID: <1992Sep3.163324.164454@dstos3.dsto.gov.au>
- Date: 3 Sep 92 22:33:23 GMT
- References: <1992Aug24.212459.17668@mnemosyne.cs.du.edu> <1992Aug31.080450.1@cc.curtin.edu.au> <1992Aug30.215409.3729@spcvxb.spc.edu> <1992Aug31.122642.7992@access.digex.com>
- Organization: Defence Science and Technology Organisation
- Lines: 22
-
- In article <1992Aug31.122642.7992@access.digex.com>, zbang@access.digex.com (Carl P. Zwanzig) writes:
- > BTW, What most people have in their houses is "split phase", not "two phase".
- > The former is derived from a single transformer winding with 240v from
- > end to end and a center tap, which is the grounded neutral. "Two phase" is
- > a setup that requires 3 or 4 wires and generator windings that are electricly
- > 90 degrees out of phase. It is only used in very old industrial plants
- > anymore.
-
- Another alternative is using 2 phases of a 3 phase suppply - not very common,
- but it gives you 415 volts in Australia, or about 190 volts in USA. Then
- again, using either 2 or 3 phases as 2 or 3 single phase supplies provides
- crude balancing between phases.
-
- Regards,
-
- John Bennett E-mail: bennett@dstos3.dsto.gov.au
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